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IKW Recommendation for the Quality Assessment
of the Product Performance of All-Purpose Cleaners 2014
German Cosmetic, Toiletry, Perfumery and Detergent Association (IKW)*
Foreword
1. Remit
IKW member companies make their expert knowledge of the
products they manufacture available to the general public;
this is done in the form of quality assessment recommendations. These are intended to enable a qualified testing of
the products by the manufacturers themselves and by test
institutes. Quality characteristics are described that need to
be fulfilled by the products concerned in order to achieve the
effects expected by consumers and manufacturers.
2. Environment
Companies working within the framework of the IKW want
optimal quality standards for their products. Their aim is a
consistent orientation to sustainability as a guiding principle, preparing to successfully face the future in a constantly changing world. This commitment to sustainability
as a guiding principle is built up on experiences expressed in
numerous exemplary initiatives. Taking as starting points the
Declaration of Rio 1992, »92+10« of Johannesburg and the
Agenda 21, sustainability is understood as a balanced linking
of economic, social and ecological aspects, with a view to
meeting the needs of the present without compromising the
ability of future generations to meet their own needs.
With this in mind, quality assessment recommendations help
to encourage company staff to act responsibly toward humans
and the environment in product development and manufacture. They also serve consumers who can expect efficient, safe
and environmentally sound products.
3. Assessment of Test Results
The recommendations describe which qualities are relevant to a given product and how such qualities can be
measured. It should be noted that every finished product
has a certain efficacy spectrum in its intended use; this
spectrum is largely determined by consumer expectations
as to each individual quality characteristic – so that in each
product some characteristics are deliberately emphasized
while others will be less important. Moreover the desired
combination of product properties is subject to constant
change, depending on the latest technical possibilities and
new consumer habits.
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Quality assessment recommendations must not impair such
developments. Consequently for each product only one overall
result is valid to determine whether the product meets the
quality recommendations or not. Emphasis on isolated test
criteria is not admissible and may be misleading.
4. Requirements
With regard to composition, packaging and labelling, inter
alia, the following statutory requirements must be observed
in their existing versions or to the extent that they still apply,
respectively:
• German code on foodstuffs, consumer items and animal
feed (Lebensmittel-, Bedarfsgegenstände- und Futtermittelgesetzbuch – LFGB)
•G
erman chemicals act (Chemikaliengesetz – ChemG)
•G
erman dangerous substances ordinance
(Gefahrstoffverordnung – GefStoffV)
• German detergents and cleaning products act
(Wasch- und Reinigungsmittelgesetz – WRMG)
• Detergents Regulation (EC) No 648/2004
• German ordinance on pre-packaged products (Fertigverpackungsverordnung – FPV)
• German ordinance on the transport of dangerous goods by
road (Gefahrgutverordnung Straße – GGVS)
• German ordinance on the transport of dangerous goods by
rail (Gefahrgutverordnung Eisenbahn – GGVE)
Voluntary Agreements:
• Ban of chlorinated organic solvents, from 1 January 1988
• Ban of musk xylene, from 31 December 1993
• Ban of alkyl phenol ethoxylates (APEO), from 14 January 1986
• Ban of EDTA
• Ban of triclosan
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1. Introduction
3a) P
roduct Performance: Cleaning Performance
All-purpose cleaners, as well as hand dishwashing products
and sanitary cleaners (bathroom and toilet), are the most
frequently used cleaning products in households. They are
usually applied in diluted form to clean floors and surfaces
(large surface applications) or they are used as concentrated
products to remove persistent soiling and dirt stains (selective
application).
All-purpose cleaners are preparations consisting of various
surfactant mixtures, water soluble solvents and complexing
agents. They also contain additives such as perfumes and
colourants as well as preservation auxiliaries. Formulations are
available as standard products and/or concentrates. Usually,
formulations are neutral to alkaline. These recommendations
are for such products.
Consequently for the quality assessment of such widely marketed and much observed products a straightforward, reproducible and practice-orientated test method is desirable, both
in external comparative testing and in product development.
For developing such a method, a working group composed of
experts from companies manufacturing cleaning agents and
from test institutes was constituted within the German Cosmetic, Toiletry, Perfumery and Detergent Association (IKW).
The methods, as described in the recommendation for the
quality assessment of the product performance of all-purpose
cleaners of 2004 (I), were updated. The modifications are
described in the following.
Also in the present framework conditions it was once again
noted that no differentiation was possible in diluted application. Therefore it is recommended to continue testing all-purpose cleaners, which are intended for diluted application, in
undiluted form also in the future. By contrast, this method
was found unsuitable for power cleaners intended to remove
grease. For this reason, another recommendation is elaborated
specifically for those products.
3b) Product Performance: Clear Drying and
Streak Formation
In this method, scrubbing continues to take place with the
diluted product on mirror tiles, and the scrubbing track is
evaluated after drying in a comparison with water of defined hardness. This method for the determination of clear
drying of all-purpose cleaners is not suitable for the testing
of glass cleaners.
3c) Product Performance: Material Care
2. Aim
The mandate of the working group was to update the IKW
recommendation for the quality assessment of the product
performance of all-purpose cleaners dating back to the year
2004 (I).The updated recommendation wants to enable qualified testing of the products by the manufacturers themselves
and by independent test institutes.
The evaluation of material care continues to rely on the stress
cracking corrosion test with small plastic sticks made of different materials, based on German standard DIN 53449-3
(Testing of plastics; evaluation of environmental stress cracking (ESC); bent strip method) (II).
4. Test Principle
The update needs to meet the following criteria:
• Practice relevance
Product performance is determined by way of the following
measuring results:
• Reproducibility
• Cleaning performance
• Differentiation between products
• Clear drying/Streak formation
• S traightforward implementation,
to the highest degree possible
• Material care
For further characterisation, without assessment, the pH value
and sensorial properties (fragrance, colour) are determined.
3. Strategy Followed by the Working Group
The work was based on the recommendation for the quality
assessment of the product performance of all-purpose cleaners of 2004 (I) and on the methods described in that recommendation.
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5. Description of Method
This method is not suitable for differentiating between special
kitchen, grease, power or acid cleaners. It is also unsuitable
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for comparing between cleaning products of different viscosity levels, because it puts products of higher viscosity at a
disadvantage.
5a) Cleaning Performance in Concentrated Use
The test method to determine the cleaning performance of
the concentrated product is based on a fat-dust soil dried
and bonded over an extended period of time (III). This is a
very persistent type of soil. Testing in diluted form has no
informative value.
Preparation and Implementation
The test device is a multi-track scrub tester with cloth holder
(1), preferably a Sheen 903 PG (2).
The fat-dust soil (III) consists of: (7)
of the stock solution of soil by stirring for one hour with the
magnetic stirrer.
• Stirring time to produce the isopropyl alcohol dilution is 24
h, renewed homogenisation of the isopropyl alcohol dilution
prior to each use by 30 min of stirring with the magnetic
stirrer in a closed bottle.
Within one measuring series only soil from one batch and of
the same degree of ageing can be used.
The diluted soil is sprayed with an airbrush or in screen printing
in an even layer onto a floor tile (of white or very light colour,
unglazed, of low porosity; e.g. 8) on a surface of 8 x 26 cm
(208 cm2), using a stencil (Fig. 1). Suitable tiles need to fulfil
the following criteria:
• The soil needs to adhere evenly on the tile.
75 % Peanut oil (e.g. Mazola)
23 % Kaolin 60609 (e.g. Fluka)
  2 % Ruß (for example Gustav Grolman)
Preparation
• After 10 to 25 strokes a cleaning result of value 2 needs to be
achievable with the standard cleaner; with water the test soil
must not come off the tile at this number of strokes (cleaning
result < 1).
Taking the peanut oil as a basis and using a propeller stirrer,
kaolin and special black are stirred in one after the other,
followed by stirring for 30 min. This type of soil must age for
one month at room temperature in a closed vessel without
influence of light, as it is too easy to remove if used immediately. For test purposes 20 % of the above soiling is diluted,
under stirring, with 80 % isopropyl alcohol.
• In this testing method, the test result needs to be reproducible in four tiles; the place of testing needs to be randomisable in validation.
The Following Use Periods are Intended:
• Oil: Use at most within the minimum shelf-life; keep in a cool
and dark place after opening.
The quantity of soil to be applied is 0.35 +/- 0.02 g per tile; it
is determined by difference weighing on the tile. Scales used
for this purpose must have a precision of +/- 0.01 g (Fig. 2).
In screen printing 1.10 + 0.05 mg/cm2 (0.23 + 0.01 g) are
applied. Tiles printed upon in this process do not require
reweighing.
• Soil stock solution: After 1 month of ageing, use is possible
within 12 months (storage at room temperature); if used
over longer periods the soil
becomes too persistent.
Prior to soiling, the tiles must be wiped with alcohol and then
rubbed dry; adhering wax must be removed. Important: each
tile may be used only once.
• The isopropyl alcohol dilution can be used for 7 days
with closed storage of the
sprayable soiling solution.
Stirring Times:
• The freshly prepared stock
solution of soil is stirred for
30 min with the propeller
stirrer, as described above.
• Renewed homogenisation
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Fig. 1 Application of test soil, using a stencil.
(Source: Werner & Mertz GmbH, Mainz)
Fig. 2 Weighing of tile with test soil.
(Source: Werner & Mertz GmbH, Mainz)
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Fig. 3 Application of test cleaner.
(Source: Werner & Mertz GmbH, Mainz)
Fig. 4 Test apparatus during the scrubbing
process. (Source: Werner & Mertz GmbH, Mainz)
using multi-track scrub testers, fourfold measuring is
made with randomised placing (Tab. 1). Measuring takes
place without additional
bearing weights: the bearing
mass (stamp, bar, stretching frame, cloth and 5 g of
cleaning solution) should be
between 350 g and 400 g
(Fig. 4).
A suitable number of strokes
is determined in a pre-test in
order to have a clear differentiation; the scrubbing speed is
20 strokes/minute (1 stroke = one to-and-fro movement).
The reference cleaner is adjusted as standard with at least
8 strokes (ideally 10–25 strokes) to cleaning value 2 (Fig. 5).
After-treatment of tiles takes place immediately after cleaning
with running cold water (moderate spray jet) with constant
After evaporation of the isopropyl alcohol (ca. 60 min) the
soil is burnt on at 100 °C over 24 h in the circulating-air
drying cabinet (e.g. Heraeus type UT 6200 or Memmert
ULE/SLE 800) where the plates are placed individually next
to each other on the grates. In multi-layer drying cabinets,
it is essential to leave sufficient space between the plates
to enable an even air circulation. The temperature profile must be measured, and the
charging process must always be performed
Products A, B, C, W = water
evenly. After cooling down to room temperature the plates are stored for 24 h at room
Track
1
2
3
4
temperature for conditioning; then they can
Plate 1:
A
B
C
W
be used for up to 14 days if stored in an upPlate 2:
B
A
W
C
right position in the laboratory.
Plate 3:
W
C
A
B
The preparation of these test plates is the cruPlate 4:
C
W
B
A
cial part of this method and requires special
care, particularly in respect of temperature
Tab. 1 Test set-up clear drying behaviour/streak formation; 3 products and water.
control and temperature constancy inside the
hot cabinet.
The comparative assessment of the cleaning
performance is made, using an automatic
multi-track scrub tester, by scrubbing with a
cloth onto which the test substance is pipetted
(Fig. 3).
Within one measuring series the multi-track
scrub tester must not be changed.
The cloths, preferably article no. 02010100 by
the company Fa. Wecovi (3), are selected by
mean cloth weight +/- 1 g (e.g. 17–19 g/20–22
g/23–25 g uncut); cloths that display strong
inhomogeneities against the light are sorted out. Homogeneous cloths of one weight
range are cut, without any further preparations, to ca. 13 x 10 cm and used.
After inserting the cloth and attaching it, 5
ml of product are evenly pipetted on. When
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Fig. 5 Assessment scale. (Source: Henkel AG & Co. KGaA, Düsseldorf)
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1. Stock solutions:
• Solution 1: 800 mmol/l NaHCO3 (67.2 g/l);
• Solution 2: 154.2 mmol/l MgSO4*7H2O (38.0 g/l);
• Solution 3: 446.1 mmol/l CaCl2*2H2O (65.6 g/l).
2. Preparation of water 16.8 °d:
50 ml each of solutions 1, 2, 3 are poured into a receptacle with 7 l of
demineralised water and filled up with more demineralised water to 10 l.
Prior to use of the synthetic water, the pH value is adjusted to 7.5 with HCl
or NaOH.
Fig. 6 Rinsing of tiles after the scrubbing
process. (Source: Werner & Mertz GmbH, Mainz)
Preparation Specification water 16.8 °d.
water hardness (Fig. 6). Plates dry standing upright at room
temperature.
The assessment is made visually by way of inspection, in a
comparison with an assessment scale (Fig. 5).
If the minimum number of strokes is not reached, the burnon time should be extended by some hours. Should this not
bring the desired result, there is the possibility of increasing
the burn-on temperature in 5 °C steps (to maximally 120 °C).
If this does not bring the desired result, either, the soil should
be prepared once more with a different peanut oil.
of two products, multiple comparison of several products),
several statistical tests are available for the evaluation of results (cp. I).
Description of the Result for Cleaning Performance
The result may be described only in connection with relevant
test conditions, because the achieved cleaning performance
depends on the number of times scrubbed. Cross-comparisons
with grades from different tests are not permissible.
5b) Clear Drying/Streak Formation
Notes on the Implementation
The number of times scrubbed should correspond to the number of
strokes that was determined in the pre-test with the standard cleaner
(Formulation, page 6) (ideally between 10 and 25 strokes). If a test
product achieves full cleaning before that number of strokes (ranks 9
to 10), the number of strokes is to be noted down; it constitutes the
quality characteristic in the comparison with the other tested products. But this test is only valid if at least four strokes were necessary.
The assessment consists of the number of strokes and of the
cleaning performance achieved with them.
Reproducibility
Reproducibility needs to be good as regards the ranking of
different products. Obviously the absolute number of strokes
per product or per plate varies.
Assessment of Cleaning Performance
The plates are inspected by at least 3, but preferably 5, experienced persons in an independent assessment, with no
knowledge of the respective product.
A statistical evaluation, stating the error margin, needs to be
carried out.
Determination of Sequence and Significance Check
A significance check is to be carried out. Depending on the
chosen test design and the data situation (comparison in pairs
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All purpose-cleaners are used most frequently in diluted form.
Therefore it is important to achieve drying without residues to
the largest extent possible.
Preparation and Implementation
The test device is a multi-track scrub tester with cloth holder
(1), preferably a Sheen 903 PG (2).
Products are tested on mirror tiles (9): In preparation of the test
they are wiped with ethanol and then rubbed dry.
Cleaners to be tested are, according to manufacturer’s
instructions, diluted with water 16.8 °d German hardness
(Preparation Specification) and homogenised. Cleaner dilutions may be used at most for one working day. Prior to
further use they must be again homogenised.
The comparative assessment of clear drying behaviour and
streak formation is carried out using an automatic multitrack
scrub tester, by scrubbing with a cloth onto which the test
substance is pipetted.
The cloths, preferably article no. 02010100 by the company
Wecovi (3), are selected by mean cloth weight +/- 1 g (e.g.
17–19 g/20–22 g/23–25 g uncut). Cloths that display strong
inhomogeneities against the light are sorted out. Then the
cloths are washed once with liquid detergent and twice without (programme hot wash/coloured laundry 60 °C, initial water hardness constant, ideally 14–18 °d) (also see description
of results of clear drying/streak formation). The liquid deter5
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Ingredient
Conc. (%)
Water, fully demineralized
100
Sodium hydroxyde, aqueous solution
45
Alkylbenzene sulfonic acid C10-13
ca. 97
Fatty acid C12-18 (e.g. Edenor K12-18)
100
Fatty alcohol ethoxylate C12-18, 7
100
EO (e.g. Dehydol LT 7)
Fatty alcohol ether sulfate C12-14,
70
2 EO, Na salt (e.g. Texapon N70)
Methylisothiazolinone/Benzisothi14
azolinone (e.g. Acticide MBR1)
% tel quel % Active substance
ad 100.00
100.00
1.74
0.78
6.00
6.00
1.00*
1.00*
4.00
4.00
4.29
3.00
0.1
0.014
Preparation: Take approx. 3/4 of the water as a basis, add NaOH, add alkylbenzene sulfonic acid
and stir for at least 15 min. Add fatty acid and stir for at least 10 min. Add fatty alcohol ethoxylate
and stir for ca. 10 min. Add fatty alcohol ether sulfate and stir until fully dissolved.
Control pH value (target value: 9.3 +/- 0.3); if this target is not met, adjust with NaOH.
Add preservative, add remaining water, stir for 10 min.
Appearance: yellowish, clear
Formulation IKW standard all-purpose cleaner. (* Spelling error corrected on February 6, 2017)
Ring test with 6 products and water on a mirror tile, visual assessment by ranking. Only fill-out
the yellow area with rank scores 1 (best) to 4 (worst) per tile. In case of equal performance divide
scores over products.
Laboratory: Date: Track 1
Mirror
Tile
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Product
7
4
1
6
2
3
5
7
4
1
6
2
3
5
Evaluator 1: Track 2
Rank
Product
Track 3
Rank
Product
Rank
Track 4
Product
6
5
7
6
2
7
1
3
3
4
5
1
4
2
6
5
7
6
2
7
1
3
3
4
5
1
4
2
*should add-up to 10 for each separate tile
Rank
Total
Rank
Scores*
3
1
5
2
7
4
6
3
1
5
2
7
4
6
Totale Rangbewertungen Evaluator 1
Product 1
Product 2
Product 3
Product 4
Product 5
Product 6
Product 7
SUM**
**should add up to:
Mirror Tiles 1 to 7
Mirror Tiles 8 to 14
Total
70
70
140
Tab. 2 Test design for randomised placing/evaluation 6 products and water: Clear drying/streak formation of all-purpose cleaners: evaluation chart for rank scores.
IKW News, SOFW7days
gent used should be clear. Dosage
of the detergent for »normally soiled
loads« according to manufacturer’s
instructions. Subsequently the cloths
are dried for at least 18 h at room
temperature, hanging down vertically without clothes pegs. After complete drying the cloths are cut – e.g.
with the help of a stencil – to 13 x
10 cm, once more selected by mean
cloth weight +/- 0.1 g and used.
After inserting and attaching the
cloth, 5 ml of diluted product (use
concentration as recommended on
the label) are evenly pipetted onto the
cloth. When using multi-track scrub
testers, measuring is made with randomised placing (Tab.1), with water
16.8 °d simultaneously running to
enable a comparison (Tab. 2). Measuring takes place without additional
bearing weights. The own weight of
the cloth holder is 350–400 g.
5 strokes are performed, the scrubbing speed is 20 strokes/minute (1
stroke = one to-and-fro movement).
There is no after-treatment of the
tiles. The subsequent drying time is
1 hour. The evaluation can be made
up to 24 h after drying. The visual
inspection of the tiles takes place
after complete drying, and the residues on the plates are assessed
applying a scale of grades, ranging
from 0–4 (0 = no residues; 4 = very
strong residues). Experience shows
that in a direct comparison drop residues are assessed more negatively
than streaks (Fig. 7).
Fig. 7 Mirror with traces of wiping.
(Source: fit GmbH, Hirschfelde)
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The inspection is made against a homogeneous dark or black
background along the scrubbing streak, with the starting
point upward (Fig. 8).
For better visibility it might be necessary to tilt the tile sideways. Assessment in a light box with halogen spot lights or
a standard light box with D 65 light source has proven its
worth.
• Drops (number, size, optical noticeability: transparent/
non-transparent)
with an assessment scale ranging from 0 = no residues, 1 =
low, 2 = medium, 3 = strong to 4 = very strong. This enables
a better differentiation of similar products.
5c) Material Care
One overall grade each needs to be determined for streaks
and drops, respectively. A product is to be assessed more
positively if it leaves streaks rather than drops. In the assessment of residues, one third of the assessment should
2
3
Stress cracking corrosion test with small plastic sticks based on
German standard DIN 53449 T 1-3 (II).
A non-rusting steel pin (dowel pin DIN 6325 Tol.: m6 3x10) is
pressed in test sticks into which a hole has been drilled (drill
2.7 and reamer 2.9 H7), using a device e.g. rack
and pinion press type 5 (4, 5). The pin must be
inserted vertically.
The
test sticks are dipped briefly in the concenStart
End
trated cleaner to be tested. Adhering cleaner
is not removed. Dipping is repeated after 24
h. Every 24 h the dipping process is repeated,
in total 5 dipping processes. The occurrence of
stress cracks is evaluated after defined periods
of time: 4 h, 1 day, then every 24 h and documented in tabular form. The test ends after 14
days (see page 10).
The Following Plastics are Tested (6):
• ABS = Acrylonitrile butadiene styrene
Novodur P2MC
Scrubing direction
1
Assessment of Clear Drying/Streak Formation
The inspection of the tiles is made by at least 3, but preferably
5, experienced persons in an independent assessment, with
no knowledge of the respective product.
Determination of Sequence and Significance Check
Regarding assessment, see description under 5a.
Description of Result of Clear Drying/Streak Formation
The result may be described only in connection with the relevant test conditions. Cross-comparisons with grades from
different tests are not permissible.
Note: This method is not suitable for the assessment of glass
or bathroom cleaners.
Assessment Criteria:
• Streaks (optical noticeability: transparent/non-transparent),
density
PlateNo.
refer to streak formation while two thirds should refer to
drop formation.
• PC = Polycarbonate Makrolon 3103 FBL
55/115
4
• PMMA = Polymethyl methacrylate
Plexiglas 8N
• POM = Polyoxymethylene Hostaform 13031 XAS
View direction – evaluator
Fig. 8
Inspection scheme.
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• POM = Polyoxymethylene Hostaform
C 9021 GV (= glass fibre reinforced) 1/30
The selected materials may undergo changes and can be adapted to new trends. In
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the following, an explanation of the assessment (cp.
Fig. 9):
Supply Sources
(1)Cloth holder – Tuchhalter: Schlosser-Service Peter Krahe
1 = No change
2 = Start of crack/Small crack
3 = Continuous crack
4 = Burst
Grabenstrasse 43, 52249 Eschweiler, Germany
Tel: +49 170 2949368, Fax: +49 2473 939298
(2)Multi-track scrub tester Sheen Wet Abrasion Scrub Tester Ref. 903/
Assessment
With a recommended cleaner, after 7 or 14 days, respectively,
no attack should be visible on the surfaces. If there are visible
traces on the surface, it must be found out whether they can
be removed by polishing with a soft cloth. If those traces can
be removed with a soft cloth, there is no attack on material.
PG: Sheen Instruments Ltd., Unit 4, St. Georges Ind. Est.,
Richmond Road, Kingston KT2 5 BQ, Great Britain
Tel: +44 208 5414333, Fax: +44 208 5493374
(3)Cloths – Tücher Article no. 02010100: Fa. Wecovi
Am Hasenberg 52, 46446 Emmerich, Germany
Tel: +49 2822 688-46 or -47
Assessment of Material Care
Test sticks are inspected, in an independent appraisal, by an
experienced person with no knowledge of the respective product. The appraisal of material care should be performed and
assessed separately for each tested plastic material.
Description of the Result for Material Care
The result may be described only in connection with relevant
test conditions. Cross-comparisons with grades from different
tests are not permissible.
(4)Dowel pin – Zylinderstift DIN 6325, 3 x 10 Tol: m6, Article no.
2520310, Fa. Würth, Reinhold-Würth-Strasse 12-17, 74650 Künzelsau, Germany, Tel: +49 7940 15-0, Fax: +49 7940 15-1000
Email: [email protected]
(5)Rack and pinion press type 5 – Zahnstangenpresse Typ 5
Schmidt Technology GmbH, Feldbergstrasse 1, Postfach 14 65
78112 St. Georgen/Schwarzwald, Germany
Tel: +49 7724 899-0, Fax: +49 7724 899-101
Email: [email protected]
5d) Product Characterisation
(6)Test plastic sticks – Kunststoff-Prüfstäbe Kunststofftechnik Buzzi GmbH,
Documenting the external condition, colour, odour, consistency and pH value is recommended, but such documentation is
not part of the quality assessment.
Time window
0-7 Days
0-7 Days
0-7 Days
8-14 Days
8-14 Days
8-14 Days
8-14 Days
Appraisal
1
2
3, 4
1
2
3
4
Vor Heubach 4, 77761 Schiltach, Germany
Tel: +49 7836 96 830, Fax: +49 7836 96 832
Email: [email protected]
Cleaner
Recommended
Suitable with some reservations
Not suitable
Recommended
Suitable
Suitable with some reservations
Not suitable
Rank 1
Rank 2
Rank 2
Rank 3
Sketch
Plastic stickfor testing
Non-rusting steel pin
Rank 3
Rank 4
Fig.9
Assessment of stress cracking corrosion. (Source: SGS INSTITUT FRESENIUS GMBH, Taunusstein)
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(7)Inputs for test soil and standard cleaner:
• Acticide MBR1:
• Fatty acid, C12-18: Edenor K12-18)
Fatty alcohol ethoxylate, C12-18, 7 EO: Dehydol LT 7,
Thor GmbH
Fatty alcohol ether sulfate, C12-14, 2 EO, Na-salt: Texapon N70,
Postfach 19 09
all:
67329 Speyer, Germany
BASF SE
Tel: +49 6232 636-0
Postfach 13 01 64
Fax: +49 6232 636-179
40551 Düsseldorf, Germany
Email: [email protected]
Tel: +49 211 7940-0
• Peanut oil e.g. Mazola:
(8)Floor tile – Fußbodenfliese Villeroy + Boch 3135, 30 x 30 cm:
Unilever Deutschland GmbH
Villeroy & Boch AG
Strandkai 1
Hauptverwaltung
20457 Hamburg, Germany
Postfach 1120
Tel: +49 40 3493-0
66688 Mettlach, Germany
Fax: +49 40 3493-3595
Tel: +49 6864 81-0
• Kaolin 60609
(9)Mirror tile – Spiegelfliese 30 x 30 cm:
Sigma-Aldrich Chemie GmbH
Do-it-yourself store quality
Eschenstrasse 5, 82024 Taufkirchen bei München
Tel: +49 89 6513-0
Email: [email protected]
www.sigmaaldrich.com/germany/Deutsche-Standorte.html
Literature
I
Andreas Fitzner, Uwe Aßmus,
SÖFW-Journal/131/9-2005, pages 54–66.
• Soot (Carbon Black)
Gustav Grolman GmbH & Co. KG
Fuggerstrasse
41468 Neuss, Germany
Tel: +49 2131 9368 01
II
Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin; www.beuth.de
III
La
Rivista Della Sostanze Grasse, Vol. LXVI, Gennaio 1989, pages
21-24.
Fax: +49 2131 9368-161
• Sodium hydroxide, aqueous solution
BASF SE
Ludwigshafen
Correspondence address:
*
Tel: +49 621 60-0
• Alkylbenzene sulfonic acid, C10-13
Impag Import GmbH
Fritz-Remy-Strasse 25
63071 Offenbach, Germany
Tel: +49 69 85000 80
IKW News, SOFW7days
German Cosmetic, Toiletry, Perfumery and
Detergent Association (IKW)
Bereich Haushaltspflege
Mainzer Landstraße 55
60329 Frankfurt am Main | Germany
www.haushaltspflege.org
9
7days
Test Design for Stress Cracking Corrosion
H 2O
Monday
Tuesday
4h
1d
Wednesday Thursday
2d
3d
Friday
Monday
Tuesday
4d
7d
8d
Wednesday Thursday
9d
10 d
Friday
Monday
11 d
14 d
1
2
3
4
5
6
Cleaner
1
2
3
4
5
6
Cleaner
1
2
3
4
5
6
Material: 1 Plexiglas
2 Novodur PL MC
3 Makrolon PC 3103
4 Hostaform 13031 AS
5 Hostaform 9021 GV 1/30
IKW News, SOFW7days
Evaluation: 1 – no attack
2 – slight cracks
3 – continuous crack
4 – burst
10